Why the tunnels under Gaza pose a major problem for Israel's

The widespread underground tunnel system in Gaza is designed to conceal and cover Hamas militants and execute surprise attacks, experts say.
ABC News’ Linsey Davis spoke with warfare expert and Reichman University Assistant Professor Daphné Richemond-Barak about the intricate Hamas tunnel system in Gaza.

Israel targets Hamas's labyrinth of tunnels under Gaza - BBC News

Is Israel acting within the laws of war?

Israel planning to flood labyrinth of Hamas terror tunnels

Israel-Hamas war: Gaza tunnels pose deadly challenge

Underground Nightmare: Hamas Tunnels and the Wicked Problem Facing

A Way Out for Gaza

Biden points to Gaza hostages when asked about Israeli tunnel

Tunnels between Gaza and Egypt are back in business since cease

Hamas militants holed up in 'Metro' web of tunnels pose serious

Palestinian tunnel warfare in the Gaza Strip - Wikipedia

Gaza's Network Of Tunnels Is A Major Hole In Israel's Defenses

Gaza's Tunnels, Now Used to Attack Israel, Began as Economic Lifelines

Getting From Gaza to Israel, by Underground Tunnels - The New York

Israel Weighs Plan to Flood Gaza Tunnels With Seawater - WSJ

For Israeli forces, the enemy lurks underground in Gaza - India Today